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Finding the Fourth Proportional to 60,914,473.60, 91,371,710.40 and 42,774,620.80

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Solution

The fourth proportional to 60,914,473.60, 91,371,710.40 and 42,774,620.80 is: 64,161,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,914,473.60 : 91,371,710.40 = 42,774,620.80 : x
  2. Step 2: Convert to fraction form
    60,914,473.60/91,371,710.40 = 42,774,620.80/x
  3. Step 3: Cross multiply
    60,914,473.60x = 91,371,710.40 × 42,774,620.80
  4. Step 4: Simplify right side
    60,914,473.60x = 3,908,390,264,207,416.50
  5. Step 5: Solve for x
    x = 3,908,390,264,207,416.50/60,914,473.60
  6. Step 6: Final answer
    x = 64,161,931.20

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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.