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Finding the Fourth Proportional to 104,188.71, 143,781.08 and 56,442.03

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Solution

The fourth proportional to 104,188.71, 143,781.08 and 56,442.03 is: 77,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,188.71 : 143,781.08 = 56,442.03 : x
  2. Step 2: Convert to fraction form
    104,188.71/143,781.08 = 56,442.03/x
  3. Step 3: Cross multiply
    104,188.71x = 143,781.08 × 56,442.03
  4. Step 4: Simplify right side
    104,188.71x = 8,115,296,030.79
  5. Step 5: Solve for x
    x = 8,115,296,030.79/104,188.71
  6. Step 6: Final answer
    x = 77,890.36

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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.