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Finding the Fourth Proportional to 93,326.72, 128,811.68 and 59,328.64

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Solution

The fourth proportional to 93,326.72, 128,811.68 and 59,328.64 is: 81,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,326.72 : 128,811.68 = 59,328.64 : x
  2. Step 2: Convert to fraction form
    93,326.72/128,811.68 = 59,328.64/x
  3. Step 3: Cross multiply
    93,326.72x = 128,811.68 × 59,328.64
  4. Step 4: Simplify right side
    93,326.72x = 7,642,221,790.52
  5. Step 5: Solve for x
    x = 7,642,221,790.52/93,326.72
  6. Step 6: Final answer
    x = 81,886.75

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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.