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Finding the Fourth Proportional to 162,547.20, 243,740.16 and 51,724.80

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Solution

The fourth proportional to 162,547.20, 243,740.16 and 51,724.80 is: 77,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,547.20 : 243,740.16 = 51,724.80 : x
  2. Step 2: Convert to fraction form
    162,547.20/243,740.16 = 51,724.80/x
  3. Step 3: Cross multiply
    162,547.20x = 243,740.16 × 51,724.80
  4. Step 4: Simplify right side
    162,547.20x = 12,607,411,027.97
  5. Step 5: Solve for x
    x = 12,607,411,027.97/162,547.20
  6. Step 6: Final answer
    x = 77,561.54

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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.