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Finding the Fourth Proportional to 103,065,269.70, 154,597,904.55 and 98,026,421.70

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Solution

The fourth proportional to 103,065,269.70, 154,597,904.55 and 98,026,421.70 is: 147,039,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,065,269.70 : 154,597,904.55 = 98,026,421.70 : x
  2. Step 2: Convert to fraction form
    103,065,269.70/154,597,904.55 = 98,026,421.70/x
  3. Step 3: Cross multiply
    103,065,269.70x = 154,597,904.55 × 98,026,421.70
  4. Step 4: Simplify right side
    103,065,269.70x = 15,154,679,385,354,650
  5. Step 5: Solve for x
    x = 15,154,679,385,354,650/103,065,269.70
  6. Step 6: Final answer
    x = 147,039,632.55

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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.