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Finding the Fourth Proportional to 93,339, 128,803.14 and 53,047.44

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Solution

The fourth proportional to 93,339, 128,803.14 and 53,047.44 is: 73,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,339 : 128,803.14 = 53,047.44 : x
  2. Step 2: Convert to fraction form
    93,339/128,803.14 = 53,047.44/x
  3. Step 3: Cross multiply
    93,339x = 128,803.14 × 53,047.44
  4. Step 4: Simplify right side
    93,339x = 6,832,676,840.96
  5. Step 5: Solve for x
    x = 6,832,676,840.96/93,339
  6. Step 6: Final answer
    x = 73,202.81

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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.