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Finding the Fourth Proportional to 66,604,678.07, 99,899,385.39 and 17,425,279.08

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Solution

The fourth proportional to 66,604,678.07, 99,899,385.39 and 17,425,279.08 is: 26,135,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604,678.07 : 99,899,385.39 = 17,425,279.08 : x
  2. Step 2: Convert to fraction form
    66,604,678.07/99,899,385.39 = 17,425,279.08/x
  3. Step 3: Cross multiply
    66,604,678.07x = 99,899,385.39 × 17,425,279.08
  4. Step 4: Simplify right side
    66,604,678.07x = 1,740,774,670,341,224.50
  5. Step 5: Solve for x
    x = 1,740,774,670,341,224.50/66,604,678.07
  6. Step 6: Final answer
    x = 26,135,921.99

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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.