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Finding the Fourth Proportional to 293,088.93, 439,403.72 and 115,728.69

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Solution

The fourth proportional to 293,088.93, 439,403.72 and 115,728.69 is: 173,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,088.93 : 439,403.72 = 115,728.69 : x
  2. Step 2: Convert to fraction form
    293,088.93/439,403.72 = 115,728.69/x
  3. Step 3: Cross multiply
    293,088.93x = 439,403.72 × 115,728.69
  4. Step 4: Simplify right side
    293,088.93x = 50,851,618,833.81
  5. Step 5: Solve for x
    x = 50,851,618,833.81/293,088.93
  6. Step 6: Final answer
    x = 173,502.35

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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.