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Finding the Fourth Proportional to 142,476.40, 213,714.60 and 59,359.60

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Solution

The fourth proportional to 142,476.40, 213,714.60 and 59,359.60 is: 89,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,476.40 : 213,714.60 = 59,359.60 : x
  2. Step 2: Convert to fraction form
    142,476.40/213,714.60 = 59,359.60/x
  3. Step 3: Cross multiply
    142,476.40x = 213,714.60 × 59,359.60
  4. Step 4: Simplify right side
    142,476.40x = 12,686,013,170.16
  5. Step 5: Solve for x
    x = 12,686,013,170.16/142,476.40
  6. Step 6: Final answer
    x = 89,039.40

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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.