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Finding the Fourth Proportional to 292,047.68, 438,005.46 and 134,124.32

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Solution

The fourth proportional to 292,047.68, 438,005.46 and 134,124.32 is: 201,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,047.68 : 438,005.46 = 134,124.32 : x
  2. Step 2: Convert to fraction form
    292,047.68/438,005.46 = 134,124.32/x
  3. Step 3: Cross multiply
    292,047.68x = 438,005.46 × 134,124.32
  4. Step 4: Simplify right side
    292,047.68x = 58,747,184,478.79
  5. Step 5: Solve for x
    x = 58,747,184,478.79/292,047.68
  6. Step 6: Final answer
    x = 201,156.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.