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Finding the Fourth Proportional to 70,476,938.60, 98,894,462.20 and 70,476,938.60

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Solution

The fourth proportional to 70,476,938.60, 98,894,462.20 and 70,476,938.60 is: 98,894,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,476,938.60 : 98,894,462.20 = 70,476,938.60 : x
  2. Step 2: Convert to fraction form
    70,476,938.60/98,894,462.20 = 70,476,938.60/x
  3. Step 3: Cross multiply
    70,476,938.60x = 98,894,462.20 × 70,476,938.60
  4. Step 4: Simplify right side
    70,476,938.60x = 6,969,778,940,349,421
  5. Step 5: Solve for x
    x = 6,969,778,940,349,421/70,476,938.60
  6. Step 6: Final answer
    x = 98,894,462.20

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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.