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Finding the Fourth Proportional to 93,307.82, 128,777.14 and 53,034.51

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Solution

The fourth proportional to 93,307.82, 128,777.14 and 53,034.51 is: 73,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,307.82 : 128,777.14 = 53,034.51 : x
  2. Step 2: Convert to fraction form
    93,307.82/128,777.14 = 53,034.51/x
  3. Step 3: Cross multiply
    93,307.82x = 128,777.14 × 53,034.51
  4. Step 4: Simplify right side
    93,307.82x = 6,829,633,068.31
  5. Step 5: Solve for x
    x = 6,829,633,068.31/93,307.82
  6. Step 6: Final answer
    x = 73,194.65

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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.