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Finding the Fourth Proportional to 60,490,851.60, 90,736,277.40 and 20,101,335.60

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Solution

The fourth proportional to 60,490,851.60, 90,736,277.40 and 20,101,335.60 is: 30,152,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490,851.60 : 90,736,277.40 = 20,101,335.60 : x
  2. Step 2: Convert to fraction form
    60,490,851.60/90,736,277.40 = 20,101,335.60/x
  3. Step 3: Cross multiply
    60,490,851.60x = 90,736,277.40 × 20,101,335.60
  4. Step 4: Simplify right side
    60,490,851.60x = 1,823,920,363,112,095.75
  5. Step 5: Solve for x
    x = 1,823,920,363,112,095.75/60,490,851.60
  6. Step 6: Final answer
    x = 30,152,003.40

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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.