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Finding the Fourth Proportional to 86,666.32, 119,598.60 and 48,938.32

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Solution

The fourth proportional to 86,666.32, 119,598.60 and 48,938.32 is: 67,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,666.32 : 119,598.60 = 48,938.32 : x
  2. Step 2: Convert to fraction form
    86,666.32/119,598.60 = 48,938.32/x
  3. Step 3: Cross multiply
    86,666.32x = 119,598.60 × 48,938.32
  4. Step 4: Simplify right side
    86,666.32x = 5,852,954,558.35
  5. Step 5: Solve for x
    x = 5,852,954,558.35/86,666.32
  6. Step 6: Final answer
    x = 67,534.36

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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.