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Finding the Fourth Proportional to 99,545.52, 149,239.32 and 49,598.40

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Solution

The fourth proportional to 99,545.52, 149,239.32 and 49,598.40 is: 74,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,545.52 : 149,239.32 = 49,598.40 : x
  2. Step 2: Convert to fraction form
    99,545.52/149,239.32 = 49,598.40/x
  3. Step 3: Cross multiply
    99,545.52x = 149,239.32 × 49,598.40
  4. Step 4: Simplify right side
    99,545.52x = 7,402,031,489.09
  5. Step 5: Solve for x
    x = 7,402,031,489.09/99,545.52
  6. Step 6: Final answer
    x = 74,358.26

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1.5x scale

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.