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Finding the Fourth Proportional to 191,061, 263,703.12 and 130,798.20

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Solution

The fourth proportional to 191,061, 263,703.12 and 130,798.20 is: 180,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,061 : 263,703.12 = 130,798.20 : x
  2. Step 2: Convert to fraction form
    191,061/263,703.12 = 130,798.20/x
  3. Step 3: Cross multiply
    191,061x = 263,703.12 × 130,798.20
  4. Step 4: Simplify right side
    191,061x = 34,491,893,430.38
  5. Step 5: Solve for x
    x = 34,491,893,430.38/191,061
  6. Step 6: Final answer
    x = 180,528.17

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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.