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Finding the Fourth Proportional to 369,509.50, 554,515.75 and 132,876.10

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Solution

The fourth proportional to 369,509.50, 554,515.75 and 132,876.10 is: 199,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,509.50 : 554,515.75 = 132,876.10 : x
  2. Step 2: Convert to fraction form
    369,509.50/554,515.75 = 132,876.10/x
  3. Step 3: Cross multiply
    369,509.50x = 554,515.75 × 132,876.10
  4. Step 4: Simplify right side
    369,509.50x = 73,681,887,614.95
  5. Step 5: Solve for x
    x = 73,681,887,614.95/369,509.50
  6. Step 6: Final answer
    x = 199,404.58

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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.