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Finding the Fourth Proportional to 130,282, 179,789.22 and 73,692.16

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Solution

The fourth proportional to 130,282, 179,789.22 and 73,692.16 is: 101,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,282 : 179,789.22 = 73,692.16 : x
  2. Step 2: Convert to fraction form
    130,282/179,789.22 = 73,692.16/x
  3. Step 3: Cross multiply
    130,282x = 179,789.22 × 73,692.16
  4. Step 4: Simplify right side
    130,282x = 13,249,055,966.52
  5. Step 5: Solve for x
    x = 13,249,055,966.52/130,282
  6. Step 6: Final answer
    x = 101,695.21

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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.