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Finding the Fourth Proportional to 191,110.52, 286,790.52 and 72,783.02

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Solution

The fourth proportional to 191,110.52, 286,790.52 and 72,783.02 is: 109,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,110.52 : 286,790.52 = 72,783.02 : x
  2. Step 2: Convert to fraction form
    191,110.52/286,790.52 = 72,783.02/x
  3. Step 3: Cross multiply
    191,110.52x = 286,790.52 × 72,783.02
  4. Step 4: Simplify right side
    191,110.52x = 20,873,480,152.97
  5. Step 5: Solve for x
    x = 20,873,480,152.97/191,110.52
  6. Step 6: Final answer
    x = 109,222.04

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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.