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Finding the Fourth Proportional to 98,613.72, 136,088.10 and 53,901.72

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Solution

The fourth proportional to 98,613.72, 136,088.10 and 53,901.72 is: 74,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,613.72 : 136,088.10 = 53,901.72 : x
  2. Step 2: Convert to fraction form
    98,613.72/136,088.10 = 53,901.72/x
  3. Step 3: Cross multiply
    98,613.72x = 136,088.10 × 53,901.72
  4. Step 4: Simplify right side
    98,613.72x = 7,335,382,661.53
  5. Step 5: Solve for x
    x = 7,335,382,661.53/98,613.72
  6. Step 6: Final answer
    x = 74,385.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.