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Finding the Fourth Proportional to 93,210.24, 128,658.24 and 63,419.52

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Solution

The fourth proportional to 93,210.24, 128,658.24 and 63,419.52 is: 87,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,210.24 : 128,658.24 = 63,419.52 : x
  2. Step 2: Convert to fraction form
    93,210.24/128,658.24 = 63,419.52/x
  3. Step 3: Cross multiply
    93,210.24x = 128,658.24 × 63,419.52
  4. Step 4: Simplify right side
    93,210.24x = 8,159,443,824.84
  5. Step 5: Solve for x
    x = 8,159,443,824.84/93,210.24
  6. Step 6: Final answer
    x = 87,538.06

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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.