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Finding the Fourth Proportional to 259,345.71, 357,883.25 and 144,636.12

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Solution

The fourth proportional to 259,345.71, 357,883.25 and 144,636.12 is: 199,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,345.71 : 357,883.25 = 144,636.12 : x
  2. Step 2: Convert to fraction form
    259,345.71/357,883.25 = 144,636.12/x
  3. Step 3: Cross multiply
    259,345.71x = 357,883.25 × 144,636.12
  4. Step 4: Simplify right side
    259,345.71x = 51,762,843,969.81
  5. Step 5: Solve for x
    x = 51,762,843,969.81/259,345.71
  6. Step 6: Final answer
    x = 199,590.13

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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.