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Finding the Fourth Proportional to 127,235.80, 175,568.88 and 70,636.24

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Solution

The fourth proportional to 127,235.80, 175,568.88 and 70,636.24 is: 97,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,235.80 : 175,568.88 = 70,636.24 : x
  2. Step 2: Convert to fraction form
    127,235.80/175,568.88 = 70,636.24/x
  3. Step 3: Cross multiply
    127,235.80x = 175,568.88 × 70,636.24
  4. Step 4: Simplify right side
    127,235.80x = 12,401,525,544.21
  5. Step 5: Solve for x
    x = 12,401,525,544.21/127,235.80
  6. Step 6: Final answer
    x = 97,468.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.