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Finding the Fourth Proportional to 191,064.72, 286,203.06 and 111,938.88

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Solution

The fourth proportional to 191,064.72, 286,203.06 and 111,938.88 is: 167,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,064.72 : 286,203.06 = 111,938.88 : x
  2. Step 2: Convert to fraction form
    191,064.72/286,203.06 = 111,938.88/x
  3. Step 3: Cross multiply
    191,064.72x = 286,203.06 × 111,938.88
  4. Step 4: Simplify right side
    191,064.72x = 32,037,249,988.97
  5. Step 5: Solve for x
    x = 32,037,249,988.97/191,064.72
  6. Step 6: Final answer
    x = 167,677.48

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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.