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Finding the Fourth Proportional to 437,437.52, 656,156.16 and 105,013.52

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Solution

The fourth proportional to 437,437.52, 656,156.16 and 105,013.52 is: 157,520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,437.52 : 656,156.16 = 105,013.52 : x
  2. Step 2: Convert to fraction form
    437,437.52/656,156.16 = 105,013.52/x
  3. Step 3: Cross multiply
    437,437.52x = 656,156.16 × 105,013.52
  4. Step 4: Simplify right side
    437,437.52x = 68,905,268,031.28
  5. Step 5: Solve for x
    x = 68,905,268,031.28/437,437.52
  6. Step 6: Final answer
    x = 157,520.25

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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.