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Finding the Fourth Proportional to 78,070.01, 107,730.32 and 44,086.76

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Solution

The fourth proportional to 78,070.01, 107,730.32 and 44,086.76 is: 60,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,070.01 : 107,730.32 = 44,086.76 : x
  2. Step 2: Convert to fraction form
    78,070.01/107,730.32 = 44,086.76/x
  3. Step 3: Cross multiply
    78,070.01x = 107,730.32 × 44,086.76
  4. Step 4: Simplify right side
    78,070.01x = 4,749,480,334.13
  5. Step 5: Solve for x
    x = 4,749,480,334.13/78,070.01
  6. Step 6: Final answer
    x = 60,836.17

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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.