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Finding the Fourth Proportional to 93,307.01, 128,727.11 and 57,434.74

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Solution

The fourth proportional to 93,307.01, 128,727.11 and 57,434.74 is: 79,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,307.01 : 128,727.11 = 57,434.74 : x
  2. Step 2: Convert to fraction form
    93,307.01/128,727.11 = 57,434.74/x
  3. Step 3: Cross multiply
    93,307.01x = 128,727.11 × 57,434.74
  4. Step 4: Simplify right side
    93,307.01x = 7,393,407,915.57
  5. Step 5: Solve for x
    x = 7,393,407,915.57/93,307.01
  6. Step 6: Final answer
    x = 79,237.44

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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.