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Finding the Fourth Proportional to 130,326.63, 179,850.74 and 70,710.63

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Solution

The fourth proportional to 130,326.63, 179,850.74 and 70,710.63 is: 97,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,326.63 : 179,850.74 = 70,710.63 : x
  2. Step 2: Convert to fraction form
    130,326.63/179,850.74 = 70,710.63/x
  3. Step 3: Cross multiply
    130,326.63x = 179,850.74 × 70,710.63
  4. Step 4: Simplify right side
    130,326.63x = 12,717,359,131.37
  5. Step 5: Solve for x
    x = 12,717,359,131.37/130,326.63
  6. Step 6: Final answer
    x = 97,580.66

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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.