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Finding the Fourth Proportional to 93,523.64, 128,895.72 and 70,808.21

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Solution

The fourth proportional to 93,523.64, 128,895.72 and 70,808.21 is: 97,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,523.64 : 128,895.72 = 70,808.21 : x
  2. Step 2: Convert to fraction form
    93,523.64/128,895.72 = 70,808.21/x
  3. Step 3: Cross multiply
    93,523.64x = 128,895.72 × 70,808.21
  4. Step 4: Simplify right side
    93,523.64x = 9,126,874,565.38
  5. Step 5: Solve for x
    x = 9,126,874,565.38/93,523.64
  6. Step 6: Final answer
    x = 97,588.96

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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.