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Finding the Fourth Proportional to 152,925.89, 211,034.90 and 84,940.16

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Solution

The fourth proportional to 152,925.89, 211,034.90 and 84,940.16 is: 117,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,925.89 : 211,034.90 = 84,940.16 : x
  2. Step 2: Convert to fraction form
    152,925.89/211,034.90 = 84,940.16/x
  3. Step 3: Cross multiply
    152,925.89x = 211,034.90 × 84,940.16
  4. Step 4: Simplify right side
    152,925.89x = 17,925,337,328.76
  5. Step 5: Solve for x
    x = 17,925,337,328.76/152,925.89
  6. Step 6: Final answer
    x = 117,215.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.