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Finding the Fourth Proportional to 130,094.50, 179,530.65 and 70,478.50

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Solution

The fourth proportional to 130,094.50, 179,530.65 and 70,478.50 is: 97,260.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,094.50 : 179,530.65 = 70,478.50 : x
  2. Step 2: Convert to fraction form
    130,094.50/179,530.65 = 70,478.50/x
  3. Step 3: Cross multiply
    130,094.50x = 179,530.65 × 70,478.50
  4. Step 4: Simplify right side
    130,094.50x = 12,653,050,916.03
  5. Step 5: Solve for x
    x = 12,653,050,916.03/130,094.50
  6. Step 6: Final answer
    x = 97,260.46

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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.