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Finding the Fourth Proportional to 130,125.48, 179,571.69 and 70,509.48

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Solution

The fourth proportional to 130,125.48, 179,571.69 and 70,509.48 is: 97,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,125.48 : 179,571.69 = 70,509.48 : x
  2. Step 2: Convert to fraction form
    130,125.48/179,571.69 = 70,509.48/x
  3. Step 3: Cross multiply
    130,125.48x = 179,571.69 × 70,509.48
  4. Step 4: Simplify right side
    130,125.48x = 12,661,506,484.62
  5. Step 5: Solve for x
    x = 12,661,506,484.62/130,125.48
  6. Step 6: Final answer
    x = 97,302.28

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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.