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Finding the Fourth Proportional to 402,725.66, 604,077.63 and 99,122.52

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Solution

The fourth proportional to 402,725.66, 604,077.63 and 99,122.52 is: 148,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,725.66 : 604,077.63 = 99,122.52 : x
  2. Step 2: Convert to fraction form
    402,725.66/604,077.63 = 99,122.52/x
  3. Step 3: Cross multiply
    402,725.66x = 604,077.63 × 99,122.52
  4. Step 4: Simplify right side
    402,725.66x = 59,877,698,471.42
  5. Step 5: Solve for x
    x = 59,877,698,471.42/402,725.66
  6. Step 6: Final answer
    x = 148,681.11

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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.