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Finding the Fourth Proportional to 77,686,253, 116,534,978.22 and 29,817,197

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Solution

The fourth proportional to 77,686,253, 116,534,978.22 and 29,817,197 is: 44,727,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,686,253 : 116,534,978.22 = 29,817,197 : x
  2. Step 2: Convert to fraction form
    77,686,253/116,534,978.22 = 29,817,197/x
  3. Step 3: Cross multiply
    77,686,253x = 116,534,978.22 × 29,817,197
  4. Step 4: Simplify right side
    77,686,253x = 3,474,746,402,976,449.50
  5. Step 5: Solve for x
    x = 3,474,746,402,976,449.50/77,686,253
  6. Step 6: Final answer
    x = 44,727,944.38

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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.