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Finding the Fourth Proportional to 93,116.93, 128,492.44 and 52,271.69

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Solution

The fourth proportional to 93,116.93, 128,492.44 and 52,271.69 is: 72,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,116.93 : 128,492.44 = 52,271.69 : x
  2. Step 2: Convert to fraction form
    93,116.93/128,492.44 = 52,271.69/x
  3. Step 3: Cross multiply
    93,116.93x = 128,492.44 × 52,271.69
  4. Step 4: Simplify right side
    93,116.93x = 6,716,516,217.88
  5. Step 5: Solve for x
    x = 6,716,516,217.88/93,116.93
  6. Step 6: Final answer
    x = 72,129.92

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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.