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Finding the Fourth Proportional to 66,537,669.60, 99,806,504.40 and 65,641,874.40

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Solution

The fourth proportional to 66,537,669.60, 99,806,504.40 and 65,641,874.40 is: 98,462,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,537,669.60 : 99,806,504.40 = 65,641,874.40 : x
  2. Step 2: Convert to fraction form
    66,537,669.60/99,806,504.40 = 65,641,874.40/x
  3. Step 3: Cross multiply
    66,537,669.60x = 99,806,504.40 × 65,641,874.40
  4. Step 4: Simplify right side
    66,537,669.60x = 6,551,486,026,127,848
  5. Step 5: Solve for x
    x = 6,551,486,026,127,848/66,537,669.60
  6. Step 6: Final answer
    x = 98,462,811.60

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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.