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Finding the Fourth Proportional to 102,362,927.60, 153,544,391.40 and 84,187,645.40

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Solution

The fourth proportional to 102,362,927.60, 153,544,391.40 and 84,187,645.40 is: 126,281,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,362,927.60 : 153,544,391.40 = 84,187,645.40 : x
  2. Step 2: Convert to fraction form
    102,362,927.60/153,544,391.40 = 84,187,645.40/x
  3. Step 3: Cross multiply
    102,362,927.60x = 153,544,391.40 × 84,187,645.40
  4. Step 4: Simplify right side
    102,362,927.60x = 12,926,540,776,342,010
  5. Step 5: Solve for x
    x = 12,926,540,776,342,010/102,362,927.60
  6. Step 6: Final answer
    x = 126,281,468.10

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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.