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Finding the Fourth Proportional to 145,304.16, 218,040.48 and 61,057.68

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Solution

The fourth proportional to 145,304.16, 218,040.48 and 61,057.68 is: 91,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,304.16 : 218,040.48 = 61,057.68 : x
  2. Step 2: Convert to fraction form
    145,304.16/218,040.48 = 61,057.68/x
  3. Step 3: Cross multiply
    145,304.16x = 218,040.48 × 61,057.68
  4. Step 4: Simplify right side
    145,304.16x = 13,313,045,854.89
  5. Step 5: Solve for x
    x = 13,313,045,854.89/145,304.16
  6. Step 6: Final answer
    x = 91,621.92

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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.