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Finding the Fourth Proportional to 69,992,303.60, 104,988,455.40 and 61,678,204.40

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Solution

The fourth proportional to 69,992,303.60, 104,988,455.40 and 61,678,204.40 is: 92,517,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992,303.60 : 104,988,455.40 = 61,678,204.40 : x
  2. Step 2: Convert to fraction form
    69,992,303.60/104,988,455.40 = 61,678,204.40/x
  3. Step 3: Cross multiply
    69,992,303.60x = 104,988,455.40 × 61,678,204.40
  4. Step 4: Simplify right side
    69,992,303.60x = 6,475,499,411,801,484
  5. Step 5: Solve for x
    x = 6,475,499,411,801,484/69,992,303.60
  6. Step 6: Final answer
    x = 92,517,306.60

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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.