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Finding the Fourth Proportional to 247,172.16, 340,916.40 and 162,258.24

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Solution

The fourth proportional to 247,172.16, 340,916.40 and 162,258.24 is: 223,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,172.16 : 340,916.40 = 162,258.24 : x
  2. Step 2: Convert to fraction form
    247,172.16/340,916.40 = 162,258.24/x
  3. Step 3: Cross multiply
    247,172.16x = 340,916.40 × 162,258.24
  4. Step 4: Simplify right side
    247,172.16x = 55,316,495,051.14
  5. Step 5: Solve for x
    x = 55,316,495,051.14/247,172.16
  6. Step 6: Final answer
    x = 223,797.43

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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.