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Finding the Fourth Proportional to 93,345, 128,819.34 and 53,060.46

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Solution

The fourth proportional to 93,345, 128,819.34 and 53,060.46 is: 73,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345 : 128,819.34 = 53,060.46 : x
  2. Step 2: Convert to fraction form
    93,345/128,819.34 = 53,060.46/x
  3. Step 3: Cross multiply
    93,345x = 128,819.34 × 53,060.46
  4. Step 4: Simplify right side
    93,345x = 6,835,213,437.30
  5. Step 5: Solve for x
    x = 6,835,213,437.30/93,345
  6. Step 6: Final answer
    x = 73,225.28

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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.