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Finding the Fourth Proportional to 93,124.84, 128,286.48 and 69,210.04

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Solution

The fourth proportional to 93,124.84, 128,286.48 and 69,210.04 is: 95,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,124.84 : 128,286.48 = 69,210.04 : x
  2. Step 2: Convert to fraction form
    93,124.84/128,286.48 = 69,210.04/x
  3. Step 3: Cross multiply
    93,124.84x = 128,286.48 × 69,210.04
  4. Step 4: Simplify right side
    93,124.84x = 8,878,712,412.26
  5. Step 5: Solve for x
    x = 8,878,712,412.26/93,124.84
  6. Step 6: Final answer
    x = 95,342.04

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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.