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Finding the Fourth Proportional to 169,911.32, 234,478.53 and 93,435.35

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Solution

The fourth proportional to 169,911.32, 234,478.53 and 93,435.35 is: 128,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,911.32 : 234,478.53 = 93,435.35 : x
  2. Step 2: Convert to fraction form
    169,911.32/234,478.53 = 93,435.35/x
  3. Step 3: Cross multiply
    169,911.32x = 234,478.53 × 93,435.35
  4. Step 4: Simplify right side
    169,911.32x = 21,908,582,345.64
  5. Step 5: Solve for x
    x = 21,908,582,345.64/169,911.32
  6. Step 6: Final answer
    x = 128,941.28

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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.