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Finding the Fourth Proportional to 191,189.65, 286,789.92 and 64,830.25

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Solution

The fourth proportional to 191,189.65, 286,789.92 and 64,830.25 is: 97,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,189.65 : 286,789.92 = 64,830.25 : x
  2. Step 2: Convert to fraction form
    191,189.65/286,789.92 = 64,830.25/x
  3. Step 3: Cross multiply
    191,189.65x = 286,789.92 × 64,830.25
  4. Step 4: Simplify right side
    191,189.65x = 18,592,662,211.08
  5. Step 5: Solve for x
    x = 18,592,662,211.08/191,189.65
  6. Step 6: Final answer
    x = 97,247.22

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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.