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Finding the Fourth Proportional to 118,210.80, 177,316.20 and 97,215.60

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Solution

The fourth proportional to 118,210.80, 177,316.20 and 97,215.60 is: 145,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,210.80 : 177,316.20 = 97,215.60 : x
  2. Step 2: Convert to fraction form
    118,210.80/177,316.20 = 97,215.60/x
  3. Step 3: Cross multiply
    118,210.80x = 177,316.20 × 97,215.60
  4. Step 4: Simplify right side
    118,210.80x = 17,237,900,772.72
  5. Step 5: Solve for x
    x = 17,237,900,772.72/118,210.80
  6. Step 6: Final answer
    x = 145,823.40

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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.