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Finding the Fourth Proportional to 156,988.45, 235,482.68 and 83,260.45

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Solution

The fourth proportional to 156,988.45, 235,482.68 and 83,260.45 is: 124,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.45 : 235,482.68 = 83,260.45 : x
  2. Step 2: Convert to fraction form
    156,988.45/235,482.68 = 83,260.45/x
  3. Step 3: Cross multiply
    156,988.45x = 235,482.68 × 83,260.45
  4. Step 4: Simplify right side
    156,988.45x = 19,606,393,904.01
  5. Step 5: Solve for x
    x = 19,606,393,904.01/156,988.45
  6. Step 6: Final answer
    x = 124,890.68

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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.