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Finding the Fourth Proportional to 130,353.69, 179,888.09 and 70,737.69

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Solution

The fourth proportional to 130,353.69, 179,888.09 and 70,737.69 is: 97,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,353.69 : 179,888.09 = 70,737.69 : x
  2. Step 2: Convert to fraction form
    130,353.69/179,888.09 = 70,737.69/x
  3. Step 3: Cross multiply
    130,353.69x = 179,888.09 × 70,737.69
  4. Step 4: Simplify right side
    130,353.69x = 12,724,867,945.11
  5. Step 5: Solve for x
    x = 12,724,867,945.11/130,353.69
  6. Step 6: Final answer
    x = 97,618.01

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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.