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Finding the Fourth Proportional to 98,545.55, 147,819.13 and 42,381.77

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Solution

The fourth proportional to 98,545.55, 147,819.13 and 42,381.77 is: 63,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,545.55 : 147,819.13 = 42,381.77 : x
  2. Step 2: Convert to fraction form
    98,545.55/147,819.13 = 42,381.77/x
  3. Step 3: Cross multiply
    98,545.55x = 147,819.13 × 42,381.77
  4. Step 4: Simplify right side
    98,545.55x = 6,264,835,524.21
  5. Step 5: Solve for x
    x = 6,264,835,524.21/98,545.55
  6. Step 6: Final answer
    x = 63,573.00

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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.