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Finding the Fourth Proportional to 176,322.70, 243,330.15 and 103,730.70

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Solution

The fourth proportional to 176,322.70, 243,330.15 and 103,730.70 is: 143,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,322.70 : 243,330.15 = 103,730.70 : x
  2. Step 2: Convert to fraction form
    176,322.70/243,330.15 = 103,730.70/x
  3. Step 3: Cross multiply
    176,322.70x = 243,330.15 × 103,730.70
  4. Step 4: Simplify right side
    176,322.70x = 25,240,806,790.61
  5. Step 5: Solve for x
    x = 25,240,806,790.61/176,322.70
  6. Step 6: Final answer
    x = 143,151.20

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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.