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Finding the Fourth Proportional to 113,345.02, 156,415.71 and 63,044.02

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Solution

The fourth proportional to 113,345.02, 156,415.71 and 63,044.02 is: 87,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,345.02 : 156,415.71 = 63,044.02 : x
  2. Step 2: Convert to fraction form
    113,345.02/156,415.71 = 63,044.02/x
  3. Step 3: Cross multiply
    113,345.02x = 156,415.71 × 63,044.02
  4. Step 4: Simplify right side
    113,345.02x = 9,861,075,149.55
  5. Step 5: Solve for x
    x = 9,861,075,149.55/113,345.02
  6. Step 6: Final answer
    x = 87,000.52

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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.