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Finding the Fourth Proportional to 368,673,946.88, 508,774,300.80 and 203,658,056.96

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Solution

The fourth proportional to 368,673,946.88, 508,774,300.80 and 203,658,056.96 is: 281,050,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,673,946.88 : 508,774,300.80 = 203,658,056.96 : x
  2. Step 2: Convert to fraction form
    368,673,946.88/508,774,300.80 = 203,658,056.96/x
  3. Step 3: Cross multiply
    368,673,946.88x = 508,774,300.80 × 203,658,056.96
  4. Step 4: Simplify right side
    368,673,946.88x = 103,615,985,532,110,576
  5. Step 5: Solve for x
    x = 103,615,985,532,110,576/368,673,946.88
  6. Step 6: Final answer
    x = 281,050,468.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.