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Finding the Fourth Proportional to 65,696,604.80, 98,432,932.80 and 56,066,806.40

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Solution

The fourth proportional to 65,696,604.80, 98,432,932.80 and 56,066,806.40 is: 84,004,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,696,604.80 : 98,432,932.80 = 56,066,806.40 : x
  2. Step 2: Convert to fraction form
    65,696,604.80/98,432,932.80 = 56,066,806.40/x
  3. Step 3: Cross multiply
    65,696,604.80x = 98,432,932.80 × 56,066,806.40
  4. Step 4: Simplify right side
    65,696,604.80x = 5,518,820,186,681,810
  5. Step 5: Solve for x
    x = 5,518,820,186,681,810/65,696,604.80
  6. Step 6: Final answer
    x = 84,004,648.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.