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Finding the Fourth Proportional to 192,497.60, 288,746.40 and 145,841.60

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Solution

The fourth proportional to 192,497.60, 288,746.40 and 145,841.60 is: 218,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,497.60 : 288,746.40 = 145,841.60 : x
  2. Step 2: Convert to fraction form
    192,497.60/288,746.40 = 145,841.60/x
  3. Step 3: Cross multiply
    192,497.60x = 288,746.40 × 145,841.60
  4. Step 4: Simplify right side
    192,497.60x = 42,111,236,970.24
  5. Step 5: Solve for x
    x = 42,111,236,970.24/192,497.60
  6. Step 6: Final answer
    x = 218,762.40

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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.