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Finding the Fourth Proportional to 115,895,432.20, 162,492,483.80 and 115,895,432.20

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Solution

The fourth proportional to 115,895,432.20, 162,492,483.80 and 115,895,432.20 is: 162,492,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,895,432.20 : 162,492,483.80 = 115,895,432.20 : x
  2. Step 2: Convert to fraction form
    115,895,432.20/162,492,483.80 = 115,895,432.20/x
  3. Step 3: Cross multiply
    115,895,432.20x = 162,492,483.80 × 115,895,432.20
  4. Step 4: Simplify right side
    115,895,432.20x = 18,832,136,639,252,500
  5. Step 5: Solve for x
    x = 18,832,136,639,252,500/115,895,432.20
  6. Step 6: Final answer
    x = 162,492,483.80

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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.