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Finding the Fourth Proportional to 93,348.21, 128,828.24 and 53,074.65

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Solution

The fourth proportional to 93,348.21, 128,828.24 and 53,074.65 is: 73,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,348.21 : 128,828.24 = 53,074.65 : x
  2. Step 2: Convert to fraction form
    93,348.21/128,828.24 = 53,074.65/x
  3. Step 3: Cross multiply
    93,348.21x = 128,828.24 × 53,074.65
  4. Step 4: Simplify right side
    93,348.21x = 6,837,513,482.74
  5. Step 5: Solve for x
    x = 6,837,513,482.74/93,348.21
  6. Step 6: Final answer
    x = 73,247.40

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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.