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Finding the Fourth Proportional to 93,325.48, 128,789.19 and 53,038.20

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Solution

The fourth proportional to 93,325.48, 128,789.19 and 53,038.20 is: 73,192.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,325.48 : 128,789.19 = 53,038.20 : x
  2. Step 2: Convert to fraction form
    93,325.48/128,789.19 = 53,038.20/x
  3. Step 3: Cross multiply
    93,325.48x = 128,789.19 × 53,038.20
  4. Step 4: Simplify right side
    93,325.48x = 6,830,746,817.06
  5. Step 5: Solve for x
    x = 6,830,746,817.06/93,325.48
  6. Step 6: Final answer
    x = 73,192.73

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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.