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Finding the Fourth Proportional to 66,032,291.80, 99,048,437.70 and 20,594,013.40

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Solution

The fourth proportional to 66,032,291.80, 99,048,437.70 and 20,594,013.40 is: 30,891,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,032,291.80 : 99,048,437.70 = 20,594,013.40 : x
  2. Step 2: Convert to fraction form
    66,032,291.80/99,048,437.70 = 20,594,013.40/x
  3. Step 3: Cross multiply
    66,032,291.80x = 99,048,437.70 × 20,594,013.40
  4. Step 4: Simplify right side
    66,032,291.80x = 2,039,804,853,242,865
  5. Step 5: Solve for x
    x = 2,039,804,853,242,865/66,032,291.80
  6. Step 6: Final answer
    x = 30,891,020.10

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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.