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Finding the Fourth Proportional to 151,364,909.80, 212,484,830 and 151,364,909.80

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Solution

The fourth proportional to 151,364,909.80, 212,484,830 and 151,364,909.80 is: 212,484,830

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,364,909.80 : 212,484,830 = 151,364,909.80 : x
  2. Step 2: Convert to fraction form
    151,364,909.80/212,484,830 = 151,364,909.80/x
  3. Step 3: Cross multiply
    151,364,909.80x = 212,484,830 × 151,364,909.80
  4. Step 4: Simplify right side
    151,364,909.80x = 32,162,747,126,818,336
  5. Step 5: Solve for x
    x = 32,162,747,126,818,336/151,364,909.80
  6. Step 6: Final answer
    x = 212,484,830

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.