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Finding the Fourth Proportional to 74,734,061.60, 112,101,092.40 and 45,886,656.80

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Solution

The fourth proportional to 74,734,061.60, 112,101,092.40 and 45,886,656.80 is: 68,829,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,734,061.60 : 112,101,092.40 = 45,886,656.80 : x
  2. Step 2: Convert to fraction form
    74,734,061.60/112,101,092.40 = 45,886,656.80/x
  3. Step 3: Cross multiply
    74,734,061.60x = 112,101,092.40 × 45,886,656.80
  4. Step 4: Simplify right side
    74,734,061.60x = 5,143,944,353,863,888
  5. Step 5: Solve for x
    x = 5,143,944,353,863,888/74,734,061.60
  6. Step 6: Final answer
    x = 68,829,985.20

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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.