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Finding the Fourth Proportional to 118,148.50, 162,952.77 and 75,710.98

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Solution

The fourth proportional to 118,148.50, 162,952.77 and 75,710.98 is: 104,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,148.50 : 162,952.77 = 75,710.98 : x
  2. Step 2: Convert to fraction form
    118,148.50/162,952.77 = 75,710.98/x
  3. Step 3: Cross multiply
    118,148.50x = 162,952.77 × 75,710.98
  4. Step 4: Simplify right side
    118,148.50x = 12,337,313,095.65
  5. Step 5: Solve for x
    x = 12,337,313,095.65/118,148.50
  6. Step 6: Final answer
    x = 104,422.09

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1.5x scale

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.