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Finding the Fourth Proportional to 93,054.18, 128,413.80 and 50,612.70

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Solution

The fourth proportional to 93,054.18, 128,413.80 and 50,612.70 is: 69,845.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,054.18 : 128,413.80 = 50,612.70 : x
  2. Step 2: Convert to fraction form
    93,054.18/128,413.80 = 50,612.70/x
  3. Step 3: Cross multiply
    93,054.18x = 128,413.80 × 50,612.70
  4. Step 4: Simplify right side
    93,054.18x = 6,499,369,135.26
  5. Step 5: Solve for x
    x = 6,499,369,135.26/93,054.18
  6. Step 6: Final answer
    x = 69,845.00

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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.