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Finding the Fourth Proportional to 117,379.36, 176,082.72 and 42,534.76

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Solution

The fourth proportional to 117,379.36, 176,082.72 and 42,534.76 is: 63,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,379.36 : 176,082.72 = 42,534.76 : x
  2. Step 2: Convert to fraction form
    117,379.36/176,082.72 = 42,534.76/x
  3. Step 3: Cross multiply
    117,379.36x = 176,082.72 × 42,534.76
  4. Step 4: Simplify right side
    117,379.36x = 7,489,636,235.35
  5. Step 5: Solve for x
    x = 7,489,636,235.35/117,379.36
  6. Step 6: Final answer
    x = 63,807.10

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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.