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Finding the Fourth Proportional to 153,547.72, 230,321.60 and 59,987.88

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Solution

The fourth proportional to 153,547.72, 230,321.60 and 59,987.88 is: 89,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,547.72 : 230,321.60 = 59,987.88 : x
  2. Step 2: Convert to fraction form
    153,547.72/230,321.60 = 59,987.88/x
  3. Step 3: Cross multiply
    153,547.72x = 230,321.60 × 59,987.88
  4. Step 4: Simplify right side
    153,547.72x = 13,816,504,502.21
  5. Step 5: Solve for x
    x = 13,816,504,502.21/153,547.72
  6. Step 6: Final answer
    x = 89,981.83

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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.