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Finding the Fourth Proportional to 93,172.26, 128,663.04 and 59,191.68

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Solution

The fourth proportional to 93,172.26, 128,663.04 and 59,191.68 is: 81,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,172.26 : 128,663.04 = 59,191.68 : x
  2. Step 2: Convert to fraction form
    93,172.26/128,663.04 = 59,191.68/x
  3. Step 3: Cross multiply
    93,172.26x = 128,663.04 × 59,191.68
  4. Step 4: Simplify right side
    93,172.26x = 7,615,781,491.51
  5. Step 5: Solve for x
    x = 7,615,781,491.51/93,172.26
  6. Step 6: Final answer
    x = 81,738.72

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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.