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Finding the Fourth Proportional to 145,156,973.30, 217,735,459.95 and 145,156,973.30

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Solution

The fourth proportional to 145,156,973.30, 217,735,459.95 and 145,156,973.30 is: 217,735,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,973.30 : 217,735,459.95 = 145,156,973.30 : x
  2. Step 2: Convert to fraction form
    145,156,973.30/217,735,459.95 = 145,156,973.30/x
  3. Step 3: Cross multiply
    145,156,973.30x = 217,735,459.95 × 145,156,973.30
  4. Step 4: Simplify right side
    145,156,973.30x = 31,605,820,346,425,372
  5. Step 5: Solve for x
    x = 31,605,820,346,425,372/145,156,973.30
  6. Step 6: Final answer
    x = 217,735,459.95

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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.