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Finding the Fourth Proportional to 116,703.40, 175,055.10 and 72,185.80

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Solution

The fourth proportional to 116,703.40, 175,055.10 and 72,185.80 is: 108,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,703.40 : 175,055.10 = 72,185.80 : x
  2. Step 2: Convert to fraction form
    116,703.40/175,055.10 = 72,185.80/x
  3. Step 3: Cross multiply
    116,703.40x = 175,055.10 × 72,185.80
  4. Step 4: Simplify right side
    116,703.40x = 12,636,492,437.58
  5. Step 5: Solve for x
    x = 12,636,492,437.58/116,703.40
  6. Step 6: Final answer
    x = 108,278.70

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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.