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Finding the Fourth Proportional to 216,918.60, 325,032.30 and 160,931.40

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Solution

The fourth proportional to 216,918.60, 325,032.30 and 160,931.40 is: 241,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,918.60 : 325,032.30 = 160,931.40 : x
  2. Step 2: Convert to fraction form
    216,918.60/325,032.30 = 160,931.40/x
  3. Step 3: Cross multiply
    216,918.60x = 325,032.30 × 160,931.40
  4. Step 4: Simplify right side
    216,918.60x = 52,307,903,084.22
  5. Step 5: Solve for x
    x = 52,307,903,084.22/216,918.60
  6. Step 6: Final answer
    x = 241,140.70

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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.