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Finding the Fourth Proportional to 66,018,237.60, 98,803,407.60 and 57,956,080.80

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Solution

The fourth proportional to 66,018,237.60, 98,803,407.60 and 57,956,080.80 is: 86,737,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018,237.60 : 98,803,407.60 = 57,956,080.80 : x
  2. Step 2: Convert to fraction form
    66,018,237.60/98,803,407.60 = 57,956,080.80/x
  3. Step 3: Cross multiply
    66,018,237.60x = 98,803,407.60 × 57,956,080.80
  4. Step 4: Simplify right side
    66,018,237.60x = 5,726,258,274,180,933
  5. Step 5: Solve for x
    x = 5,726,258,274,180,933/66,018,237.60
  6. Step 6: Final answer
    x = 86,737,521.06

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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.