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Finding the Fourth Proportional to 88,706,921.30, 133,060,381.95 and 40,208,009.30

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Solution

The fourth proportional to 88,706,921.30, 133,060,381.95 and 40,208,009.30 is: 60,312,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,706,921.30 : 133,060,381.95 = 40,208,009.30 : x
  2. Step 2: Convert to fraction form
    88,706,921.30/133,060,381.95 = 40,208,009.30/x
  3. Step 3: Cross multiply
    88,706,921.30x = 133,060,381.95 × 40,208,009.30
  4. Step 4: Simplify right side
    88,706,921.30x = 5,350,093,074,907,152
  5. Step 5: Solve for x
    x = 5,350,093,074,907,152/88,706,921.30
  6. Step 6: Final answer
    x = 60,312,013.95

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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.