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Finding the Fourth Proportional to 191,616.40, 287,467.80 and 58,502.80

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Solution

The fourth proportional to 191,616.40, 287,467.80 and 58,502.80 is: 87,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,616.40 : 287,467.80 = 58,502.80 : x
  2. Step 2: Convert to fraction form
    191,616.40/287,467.80 = 58,502.80/x
  3. Step 3: Cross multiply
    191,616.40x = 287,467.80 × 58,502.80
  4. Step 4: Simplify right side
    191,616.40x = 16,817,671,209.84
  5. Step 5: Solve for x
    x = 16,817,671,209.84/191,616.40
  6. Step 6: Final answer
    x = 87,767.39

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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.