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Finding the Fourth Proportional to 127,090.46, 175,405.86 and 70,520.06

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Solution

The fourth proportional to 127,090.46, 175,405.86 and 70,520.06 is: 97,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,090.46 : 175,405.86 = 70,520.06 : x
  2. Step 2: Convert to fraction form
    127,090.46/175,405.86 = 70,520.06/x
  3. Step 3: Cross multiply
    127,090.46x = 175,405.86 × 70,520.06
  4. Step 4: Simplify right side
    127,090.46x = 12,369,631,771.55
  5. Step 5: Solve for x
    x = 12,369,631,771.55/127,090.46
  6. Step 6: Final answer
    x = 97,329.35

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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.