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Finding the Fourth Proportional to 104,225.99, 143,831.98 and 56,478.92

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Solution

The fourth proportional to 104,225.99, 143,831.98 and 56,478.92 is: 77,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,225.99 : 143,831.98 = 56,478.92 : x
  2. Step 2: Convert to fraction form
    104,225.99/143,831.98 = 56,478.92/x
  3. Step 3: Cross multiply
    104,225.99x = 143,831.98 × 56,478.92
  4. Step 4: Simplify right side
    104,225.99x = 8,123,474,031.50
  5. Step 5: Solve for x
    x = 8,123,474,031.50/104,225.99
  6. Step 6: Final answer
    x = 77,940.97

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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.