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Finding the Fourth Proportional to 134,424.92, 185,484.69 and 77,053.70

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Solution

The fourth proportional to 134,424.92, 185,484.69 and 77,053.70 is: 106,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,424.92 : 185,484.69 = 77,053.70 : x
  2. Step 2: Convert to fraction form
    134,424.92/185,484.69 = 77,053.70/x
  3. Step 3: Cross multiply
    134,424.92x = 185,484.69 × 77,053.70
  4. Step 4: Simplify right side
    134,424.92x = 14,292,281,657.85
  5. Step 5: Solve for x
    x = 14,292,281,657.85/134,424.92
  6. Step 6: Final answer
    x = 106,321.67

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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.