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Finding the Fourth Proportional to 93,328.96, 139,992.96 and 77,713.60

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Solution

The fourth proportional to 93,328.96, 139,992.96 and 77,713.60 is: 116,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,328.96 : 139,992.96 = 77,713.60 : x
  2. Step 2: Convert to fraction form
    93,328.96/139,992.96 = 77,713.60/x
  3. Step 3: Cross multiply
    93,328.96x = 139,992.96 × 77,713.60
  4. Step 4: Simplify right side
    93,328.96x = 10,879,356,896.26
  5. Step 5: Solve for x
    x = 10,879,356,896.26/93,328.96
  6. Step 6: Final answer
    x = 116,570.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.