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Finding the Fourth Proportional to 65,616,681.03, 90,553,770.96 and 37,739,398.98

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Solution

The fourth proportional to 65,616,681.03, 90,553,770.96 and 37,739,398.98 is: 52,081,952.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616,681.03 : 90,553,770.96 = 37,739,398.98 : x
  2. Step 2: Convert to fraction form
    65,616,681.03/90,553,770.96 = 37,739,398.98/x
  3. Step 3: Cross multiply
    65,616,681.03x = 90,553,770.96 × 37,739,398.98
  4. Step 4: Simplify right side
    65,616,681.03x = 3,417,444,891,402,977
  5. Step 5: Solve for x
    x = 3,417,444,891,402,977/65,616,681.03
  6. Step 6: Final answer
    x = 52,081,952.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.