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Finding the Fourth Proportional to 283,710.52, 425,566.02 and 70,478.20

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Solution

The fourth proportional to 283,710.52, 425,566.02 and 70,478.20 is: 105,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,710.52 : 425,566.02 = 70,478.20 : x
  2. Step 2: Convert to fraction form
    283,710.52/425,566.02 = 70,478.20/x
  3. Step 3: Cross multiply
    283,710.52x = 425,566.02 × 70,478.20
  4. Step 4: Simplify right side
    283,710.52x = 29,993,127,070.76
  5. Step 5: Solve for x
    x = 29,993,127,070.76/283,710.52
  6. Step 6: Final answer
    x = 105,717.36

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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.