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Finding the Fourth Proportional to 177,332.60, 266,075.70 and 83,790.20

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Solution

The fourth proportional to 177,332.60, 266,075.70 and 83,790.20 is: 125,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,332.60 : 266,075.70 = 83,790.20 : x
  2. Step 2: Convert to fraction form
    177,332.60/266,075.70 = 83,790.20/x
  3. Step 3: Cross multiply
    177,332.60x = 266,075.70 × 83,790.20
  4. Step 4: Simplify right side
    177,332.60x = 22,294,536,118.14
  5. Step 5: Solve for x
    x = 22,294,536,118.14/177,332.60
  6. Step 6: Final answer
    x = 125,721.59

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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.