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Finding the Fourth Proportional to 93,256.84, 128,695.90 and 50,815.32

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Solution

The fourth proportional to 93,256.84, 128,695.90 and 50,815.32 is: 70,125.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,256.84 : 128,695.90 = 50,815.32 : x
  2. Step 2: Convert to fraction form
    93,256.84/128,695.90 = 50,815.32/x
  3. Step 3: Cross multiply
    93,256.84x = 128,695.90 × 50,815.32
  4. Step 4: Simplify right side
    93,256.84x = 6,539,723,341.19
  5. Step 5: Solve for x
    x = 6,539,723,341.19/93,256.84
  6. Step 6: Final answer
    x = 70,125.94

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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.