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Finding the Fourth Proportional to 93,030.48, 128,284.56 and 79,646.04

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Solution

The fourth proportional to 93,030.48, 128,284.56 and 79,646.04 is: 109,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,030.48 : 128,284.56 = 79,646.04 : x
  2. Step 2: Convert to fraction form
    93,030.48/128,284.56 = 79,646.04/x
  3. Step 3: Cross multiply
    93,030.48x = 128,284.56 × 79,646.04
  4. Step 4: Simplify right side
    93,030.48x = 10,217,357,197.14
  5. Step 5: Solve for x
    x = 10,217,357,197.14/93,030.48
  6. Step 6: Final answer
    x = 109,828.06

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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.