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Finding the Fourth Proportional to 66,576,061.60, 99,864,092.40 and 46,404,080.80

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Solution

The fourth proportional to 66,576,061.60, 99,864,092.40 and 46,404,080.80 is: 69,606,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576,061.60 : 99,864,092.40 = 46,404,080.80 : x
  2. Step 2: Convert to fraction form
    66,576,061.60/99,864,092.40 = 46,404,080.80/x
  3. Step 3: Cross multiply
    66,576,061.60x = 99,864,092.40 × 46,404,080.80
  4. Step 4: Simplify right side
    66,576,061.60x = 4,634,101,412,748,266
  5. Step 5: Solve for x
    x = 4,634,101,412,748,266/66,576,061.60
  6. Step 6: Final answer
    x = 69,606,121.20

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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.