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Finding the Fourth Proportional to 66,445,368.15, 99,668,052.23 and 66,445,368.15

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Solution

The fourth proportional to 66,445,368.15, 99,668,052.23 and 66,445,368.15 is: 99,668,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,368.15 : 99,668,052.23 = 66,445,368.15 : x
  2. Step 2: Convert to fraction form
    66,445,368.15/99,668,052.23 = 66,445,368.15/x
  3. Step 3: Cross multiply
    66,445,368.15x = 99,668,052.23 × 66,445,368.15
  4. Step 4: Simplify right side
    66,445,368.15x = 6,622,480,422,883,551
  5. Step 5: Solve for x
    x = 6,622,480,422,883,551/66,445,368.15
  6. Step 6: Final answer
    x = 99,668,052.23

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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.