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Finding the Fourth Proportional to 191,457.24, 287,317.10 and 66,798.24

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Solution

The fourth proportional to 191,457.24, 287,317.10 and 66,798.24 is: 100,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,457.24 : 287,317.10 = 66,798.24 : x
  2. Step 2: Convert to fraction form
    191,457.24/287,317.10 = 66,798.24/x
  3. Step 3: Cross multiply
    191,457.24x = 287,317.10 × 66,798.24
  4. Step 4: Simplify right side
    191,457.24x = 19,192,276,601.90
  5. Step 5: Solve for x
    x = 19,192,276,601.90/191,457.24
  6. Step 6: Final answer
    x = 100,243.15

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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.