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Finding the Fourth Proportional to 93,685.52, 129,339.51 and 61,946.48

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Solution

The fourth proportional to 93,685.52, 129,339.51 and 61,946.48 is: 85,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,685.52 : 129,339.51 = 61,946.48 : x
  2. Step 2: Convert to fraction form
    93,685.52/129,339.51 = 61,946.48/x
  3. Step 3: Cross multiply
    93,685.52x = 129,339.51 × 61,946.48
  4. Step 4: Simplify right side
    93,685.52x = 8,012,127,369.42
  5. Step 5: Solve for x
    x = 8,012,127,369.42/93,685.52
  6. Step 6: Final answer
    x = 85,521.51

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1.5x scale

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.