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Finding the Fourth Proportional to 93,132.63, 128,547.75 and 57,352.64

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Solution

The fourth proportional to 93,132.63, 128,547.75 and 57,352.64 is: 79,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,132.63 : 128,547.75 = 57,352.64 : x
  2. Step 2: Convert to fraction form
    93,132.63/128,547.75 = 57,352.64/x
  3. Step 3: Cross multiply
    93,132.63x = 128,547.75 × 57,352.64
  4. Step 4: Simplify right side
    93,132.63x = 7,372,552,185.82
  5. Step 5: Solve for x
    x = 7,372,552,185.82/93,132.63
  6. Step 6: Final answer
    x = 79,161.86

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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.