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Finding the Fourth Proportional to 191,256.80, 286,366.80 and 149,784.80

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Solution

The fourth proportional to 191,256.80, 286,366.80 and 149,784.80 is: 224,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,256.80 : 286,366.80 = 149,784.80 : x
  2. Step 2: Convert to fraction form
    191,256.80/286,366.80 = 149,784.80/x
  3. Step 3: Cross multiply
    191,256.80x = 286,366.80 × 149,784.80
  4. Step 4: Simplify right side
    191,256.80x = 42,893,393,864.64
  5. Step 5: Solve for x
    x = 42,893,393,864.64/191,256.80
  6. Step 6: Final answer
    x = 224,271.21

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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.