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Finding the Fourth Proportional to 80,384,079.40, 112,688,876.60 and 80,384,079.40

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Solution

The fourth proportional to 80,384,079.40, 112,688,876.60 and 80,384,079.40 is: 112,688,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,384,079.40 : 112,688,876.60 = 80,384,079.40 : x
  2. Step 2: Convert to fraction form
    80,384,079.40/112,688,876.60 = 80,384,079.40/x
  3. Step 3: Cross multiply
    80,384,079.40x = 112,688,876.60 × 80,384,079.40
  4. Step 4: Simplify right side
    80,384,079.40x = 9,058,391,604,111,202
  5. Step 5: Solve for x
    x = 9,058,391,604,111,202/80,384,079.40
  6. Step 6: Final answer
    x = 112,688,876.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.