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Finding the Fourth Proportional to 84,248,210.40, 118,287,616.80 and 84,248,210.40

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Solution

The fourth proportional to 84,248,210.40, 118,287,616.80 and 84,248,210.40 is: 118,287,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,210.40 : 118,287,616.80 = 84,248,210.40 : x
  2. Step 2: Convert to fraction form
    84,248,210.40/118,287,616.80 = 84,248,210.40/x
  3. Step 3: Cross multiply
    84,248,210.40x = 118,287,616.80 × 84,248,210.40
  4. Step 4: Simplify right side
    84,248,210.40x = 9,965,520,027,880,976
  5. Step 5: Solve for x
    x = 9,965,520,027,880,976/84,248,210.40
  6. Step 6: Final answer
    x = 118,287,616.80

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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.