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Finding the Fourth Proportional to 357,087.52, 535,254.69 and 117,138.76

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Solution

The fourth proportional to 357,087.52, 535,254.69 and 117,138.76 is: 175,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,087.52 : 535,254.69 = 117,138.76 : x
  2. Step 2: Convert to fraction form
    357,087.52/535,254.69 = 117,138.76/x
  3. Step 3: Cross multiply
    357,087.52x = 535,254.69 × 117,138.76
  4. Step 4: Simplify right side
    357,087.52x = 62,699,070,670.78
  5. Step 5: Solve for x
    x = 62,699,070,670.78/357,087.52
  6. Step 6: Final answer
    x = 175,584.60

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1.5x scale

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.