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Finding the Fourth Proportional to 355,349.16, 532,945.25 and 102,574.72

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Solution

The fourth proportional to 355,349.16, 532,945.25 and 102,574.72 is: 153,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,349.16 : 532,945.25 = 102,574.72 : x
  2. Step 2: Convert to fraction form
    355,349.16/532,945.25 = 102,574.72/x
  3. Step 3: Cross multiply
    355,349.16x = 532,945.25 × 102,574.72
  4. Step 4: Simplify right side
    355,349.16x = 54,666,710,909.03
  5. Step 5: Solve for x
    x = 54,666,710,909.03/355,349.16
  6. Step 6: Final answer
    x = 153,839.43

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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.