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Finding the Fourth Proportional to 93,445, 128,954.22 and 59,911

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Solution

The fourth proportional to 93,445, 128,954.22 and 59,911 is: 82,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,445 : 128,954.22 = 59,911 : x
  2. Step 2: Convert to fraction form
    93,445/128,954.22 = 59,911/x
  3. Step 3: Cross multiply
    93,445x = 128,954.22 × 59,911
  4. Step 4: Simplify right side
    93,445x = 7,725,776,274.42
  5. Step 5: Solve for x
    x = 7,725,776,274.42/93,445
  6. Step 6: Final answer
    x = 82,677.26

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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.