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Finding the Fourth Proportional to 157,071.40, 219,433.40 and 157,071.40

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Solution

The fourth proportional to 157,071.40, 219,433.40 and 157,071.40 is: 219,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,071.40 : 219,433.40 = 157,071.40 : x
  2. Step 2: Convert to fraction form
    157,071.40/219,433.40 = 157,071.40/x
  3. Step 3: Cross multiply
    157,071.40x = 219,433.40 × 157,071.40
  4. Step 4: Simplify right side
    157,071.40x = 34,466,711,344.76
  5. Step 5: Solve for x
    x = 34,466,711,344.76/157,071.40
  6. Step 6: Final answer
    x = 219,433.40

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1.5x scale

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.