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Finding the Fourth Proportional to 93,030.91, 128,386.04 and 53,294.59

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Solution

The fourth proportional to 93,030.91, 128,386.04 and 53,294.59 is: 73,548.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,030.91 : 128,386.04 = 53,294.59 : x
  2. Step 2: Convert to fraction form
    93,030.91/128,386.04 = 53,294.59/x
  3. Step 3: Cross multiply
    93,030.91x = 128,386.04 × 53,294.59
  4. Step 4: Simplify right side
    93,030.91x = 6,842,281,363.52
  5. Step 5: Solve for x
    x = 6,842,281,363.52/93,030.91
  6. Step 6: Final answer
    x = 73,548.47

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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.