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Finding the Fourth Proportional to 93,929, 129,635.28 and 58,130.54

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Solution

The fourth proportional to 93,929, 129,635.28 and 58,130.54 is: 80,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,929 : 129,635.28 = 58,130.54 : x
  2. Step 2: Convert to fraction form
    93,929/129,635.28 = 58,130.54/x
  3. Step 3: Cross multiply
    93,929x = 129,635.28 × 58,130.54
  4. Step 4: Simplify right side
    93,929x = 7,535,768,829.45
  5. Step 5: Solve for x
    x = 7,535,768,829.45/93,929
  6. Step 6: Final answer
    x = 80,228.35

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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.