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Finding the Fourth Proportional to 152,207.61, 228,312.98 and 67,972.06

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Solution

The fourth proportional to 152,207.61, 228,312.98 and 67,972.06 is: 101,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,207.61 : 228,312.98 = 67,972.06 : x
  2. Step 2: Convert to fraction form
    152,207.61/228,312.98 = 67,972.06/x
  3. Step 3: Cross multiply
    152,207.61x = 228,312.98 × 67,972.06
  4. Step 4: Simplify right side
    152,207.61x = 15,518,903,775.76
  5. Step 5: Solve for x
    x = 15,518,903,775.76/152,207.61
  6. Step 6: Final answer
    x = 101,958.79

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1.5x scale

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.