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Finding the Fourth Proportional to 162,970.61, 224,909.84 and 91,350.65

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Solution

The fourth proportional to 162,970.61, 224,909.84 and 91,350.65 is: 126,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,970.61 : 224,909.84 = 91,350.65 : x
  2. Step 2: Convert to fraction form
    162,970.61/224,909.84 = 91,350.65/x
  3. Step 3: Cross multiply
    162,970.61x = 224,909.84 × 91,350.65
  4. Step 4: Simplify right side
    162,970.61x = 20,545,660,075.40
  5. Step 5: Solve for x
    x = 20,545,660,075.40/162,970.61
  6. Step 6: Final answer
    x = 126,069.73

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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.