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Finding the Fourth Proportional to 162,798.88, 224,664.68 and 91,178.40

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Solution

The fourth proportional to 162,798.88, 224,664.68 and 91,178.40 is: 125,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,798.88 : 224,664.68 = 91,178.40 : x
  2. Step 2: Convert to fraction form
    162,798.88/224,664.68 = 91,178.40/x
  3. Step 3: Cross multiply
    162,798.88x = 224,664.68 × 91,178.40
  4. Step 4: Simplify right side
    162,798.88x = 20,484,566,058.91
  5. Step 5: Solve for x
    x = 20,484,566,058.91/162,798.88
  6. Step 6: Final answer
    x = 125,827.44

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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.