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Finding the Fourth Proportional to 136,762.53, 205,123.27 and 43,256.13

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Solution

The fourth proportional to 136,762.53, 205,123.27 and 43,256.13 is: 64,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,762.53 : 205,123.27 = 43,256.13 : x
  2. Step 2: Convert to fraction form
    136,762.53/205,123.27 = 43,256.13/x
  3. Step 3: Cross multiply
    136,762.53x = 205,123.27 × 43,256.13
  4. Step 4: Simplify right side
    136,762.53x = 8,872,838,833.15
  5. Step 5: Solve for x
    x = 8,872,838,833.15/136,762.53
  6. Step 6: Final answer
    x = 64,877.70

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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.