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Finding the Fourth Proportional to 93,030.66, 128,385.69 and 53,294.34

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Solution

The fourth proportional to 93,030.66, 128,385.69 and 53,294.34 is: 73,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,030.66 : 128,385.69 = 53,294.34 : x
  2. Step 2: Convert to fraction form
    93,030.66/128,385.69 = 53,294.34/x
  3. Step 3: Cross multiply
    93,030.66x = 128,385.69 × 53,294.34
  4. Step 4: Simplify right side
    93,030.66x = 6,842,230,613.99
  5. Step 5: Solve for x
    x = 6,842,230,613.99/93,030.66
  6. Step 6: Final answer
    x = 73,548.13

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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.