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Finding the Fourth Proportional to 78,909,704, 118,364,556 and 22,176,008

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Solution

The fourth proportional to 78,909,704, 118,364,556 and 22,176,008 is: 33,264,012

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909,704 : 118,364,556 = 22,176,008 : x
  2. Step 2: Convert to fraction form
    78,909,704/118,364,556 = 22,176,008/x
  3. Step 3: Cross multiply
    78,909,704x = 118,364,556 × 22,176,008
  4. Step 4: Simplify right side
    78,909,704x = 2,624,853,340,772,448
  5. Step 5: Solve for x
    x = 2,624,853,340,772,448/78,909,704
  6. Step 6: Final answer
    x = 33,264,012

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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.