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Finding the Fourth Proportional to 169,931.80, 254,897.70 and 151,852.60

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Solution

The fourth proportional to 169,931.80, 254,897.70 and 151,852.60 is: 227,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,931.80 : 254,897.70 = 151,852.60 : x
  2. Step 2: Convert to fraction form
    169,931.80/254,897.70 = 151,852.60/x
  3. Step 3: Cross multiply
    169,931.80x = 254,897.70 × 151,852.60
  4. Step 4: Simplify right side
    169,931.80x = 38,706,878,479.02
  5. Step 5: Solve for x
    x = 38,706,878,479.02/169,931.80
  6. Step 6: Final answer
    x = 227,778.90

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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.