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Finding the Fourth Proportional to 143,526,851.70, 215,290,277.55 and 143,526,851.70

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Solution

The fourth proportional to 143,526,851.70, 215,290,277.55 and 143,526,851.70 is: 215,290,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,526,851.70 : 215,290,277.55 = 143,526,851.70 : x
  2. Step 2: Convert to fraction form
    143,526,851.70/215,290,277.55 = 143,526,851.70/x
  3. Step 3: Cross multiply
    143,526,851.70x = 215,290,277.55 × 143,526,851.70
  4. Step 4: Simplify right side
    143,526,851.70x = 30,899,935,738,370,688
  5. Step 5: Solve for x
    x = 30,899,935,738,370,688/143,526,851.70
  6. Step 6: Final answer
    x = 215,290,277.55

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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.