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Finding the Fourth Proportional to 74,547.64, 111,873.30 and 48,187

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Solution

The fourth proportional to 74,547.64, 111,873.30 and 48,187 is: 72,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,547.64 : 111,873.30 = 48,187 : x
  2. Step 2: Convert to fraction form
    74,547.64/111,873.30 = 48,187/x
  3. Step 3: Cross multiply
    74,547.64x = 111,873.30 × 48,187
  4. Step 4: Simplify right side
    74,547.64x = 5,390,838,707.10
  5. Step 5: Solve for x
    x = 5,390,838,707.10/74,547.64
  6. Step 6: Final answer
    x = 72,314.01

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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.