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Finding the Fourth Proportional to 66,822,649.80, 100,154,258.55 and 59,967,060.90

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Solution

The fourth proportional to 66,822,649.80, 100,154,258.55 and 59,967,060.90 is: 89,879,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,822,649.80 : 100,154,258.55 = 59,967,060.90 : x
  2. Step 2: Convert to fraction form
    66,822,649.80/100,154,258.55 = 59,967,060.90/x
  3. Step 3: Cross multiply
    66,822,649.80x = 100,154,258.55 × 59,967,060.90
  4. Step 4: Simplify right side
    66,822,649.80x = 6,005,956,521,862,195
  5. Step 5: Solve for x
    x = 6,005,956,521,862,195/66,822,649.80
  6. Step 6: Final answer
    x = 89,879,053.58

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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.