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Finding the Fourth Proportional to 99,089.92, 148,707.78 and 65,798.92

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Solution

The fourth proportional to 99,089.92, 148,707.78 and 65,798.92 is: 98,746.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,089.92 : 148,707.78 = 65,798.92 : x
  2. Step 2: Convert to fraction form
    99,089.92/148,707.78 = 65,798.92/x
  3. Step 3: Cross multiply
    99,089.92x = 148,707.78 × 65,798.92
  4. Step 4: Simplify right side
    99,089.92x = 9,784,811,319.60
  5. Step 5: Solve for x
    x = 9,784,811,319.60/99,089.92
  6. Step 6: Final answer
    x = 98,746.79

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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.