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Finding the Fourth Proportional to 130,258, 179,756.04 and 73,668.16

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Solution

The fourth proportional to 130,258, 179,756.04 and 73,668.16 is: 101,662.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,258 : 179,756.04 = 73,668.16 : x
  2. Step 2: Convert to fraction form
    130,258/179,756.04 = 73,668.16/x
  3. Step 3: Cross multiply
    130,258x = 179,756.04 × 73,668.16
  4. Step 4: Simplify right side
    130,258x = 13,242,296,715.69
  5. Step 5: Solve for x
    x = 13,242,296,715.69/130,258
  6. Step 6: Final answer
    x = 101,662.06

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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.