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Finding the Fourth Proportional to 207,007.60, 310,292.70 and 118,069.60

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Solution

The fourth proportional to 207,007.60, 310,292.70 and 118,069.60 is: 176,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,007.60 : 310,292.70 = 118,069.60 : x
  2. Step 2: Convert to fraction form
    207,007.60/310,292.70 = 118,069.60/x
  3. Step 3: Cross multiply
    207,007.60x = 310,292.70 × 118,069.60
  4. Step 4: Simplify right side
    207,007.60x = 36,636,134,971.92
  5. Step 5: Solve for x
    x = 36,636,134,971.92/207,007.60
  6. Step 6: Final answer
    x = 176,979.66

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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.