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Finding the Fourth Proportional to 93,150.50, 128,547.69 and 50,706.50

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Solution

The fourth proportional to 93,150.50, 128,547.69 and 50,706.50 is: 69,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,150.50 : 128,547.69 = 50,706.50 : x
  2. Step 2: Convert to fraction form
    93,150.50/128,547.69 = 50,706.50/x
  3. Step 3: Cross multiply
    93,150.50x = 128,547.69 × 50,706.50
  4. Step 4: Simplify right side
    93,150.50x = 6,518,203,442.99
  5. Step 5: Solve for x
    x = 6,518,203,442.99/93,150.50
  6. Step 6: Final answer
    x = 69,974.97

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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.