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Finding the Fourth Proportional to 93,223.68, 128,634.24 and 53,472

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Solution

The fourth proportional to 93,223.68, 128,634.24 and 53,472 is: 73,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.68 : 128,634.24 = 53,472 : x
  2. Step 2: Convert to fraction form
    93,223.68/128,634.24 = 53,472/x
  3. Step 3: Cross multiply
    93,223.68x = 128,634.24 × 53,472
  4. Step 4: Simplify right side
    93,223.68x = 6,878,330,081.28
  5. Step 5: Solve for x
    x = 6,878,330,081.28/93,223.68
  6. Step 6: Final answer
    x = 73,783.08

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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.