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Finding the Fourth Proportional to 191,011.54, 286,123.56 and 111,885.88

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Solution

The fourth proportional to 191,011.54, 286,123.56 and 111,885.88 is: 167,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,011.54 : 286,123.56 = 111,885.88 : x
  2. Step 2: Convert to fraction form
    191,011.54/286,123.56 = 111,885.88/x
  3. Step 3: Cross multiply
    191,011.54x = 286,123.56 × 111,885.88
  4. Step 4: Simplify right side
    191,011.54x = 32,013,186,299.33
  5. Step 5: Solve for x
    x = 32,013,186,299.33/191,011.54
  6. Step 6: Final answer
    x = 167,598.18

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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.